Zmieszano 100g 30-procentowego roztworu azotanu (v) sodu z 500g wody. Oblicz stężenie procentowe otrzymanego roztworu
Cp=ms/mr x 100%
0,3=ms/100
ms=30g
Cp=30/(100+500) x 100%
Cp=5%
mr₁=100g
Cp₁=30%
ms₁=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms₁=30%*100g/100%
ms₁=30g
ms₂=ms₁=30g
mr₂=mr₁+500g=600g
Cp₂=?
Cp₂=30g/600g * 100%
Cp₂=5%
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Cp=ms/mr x 100%
0,3=ms/100
ms=30g
Cp=30/(100+500) x 100%
Cp=5%
mr₁=100g
Cp₁=30%
ms₁=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms₁=30%*100g/100%
ms₁=30g
ms₂=ms₁=30g
mr₂=mr₁+500g=600g
Cp₂=?
Cp₂=30g/600g * 100%
Cp₂=5%